Earth Science

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Across
  1. 4. develops over warm, tropical oceans
  2. 10. forms when cold air retreats from one area
  3. 16. two thermometers mounted together
  4. 17. measures temperature, you use when you feel sick.
  5. 20. a gradual increase in the average global temperatures
  6. 23. when a substance is cooled to below freezing
  7. 24. blows east to west from 30 degrees latitude to equator
  8. 27. water vapor that has condensed very close to earths surface
  9. 28. a destructive rotating column of air
  10. 29. blows in upper troposphere
  11. 31. the movement of matter due to differences in density
Down
  1. 1. an instrument that measures atmospheric pressure
  2. 2. gas molecule made up of 3 oxygen atoms
  3. 3. heavy storm with rain, thunder, lighting and strong winds
  4. 5. fluffy looking object in the sky
  5. 6. the formation larger droplets
  6. 7. uppermost layer of atmosphere
  7. 8. cloud with a dark bottom and top that looks like cotton ball
  8. 9. composed of ice crystals with the highest altitude of any cloud in the sky
  9. 11. when raindrops are smaller than 0.5 mm in diameter
  10. 12. scientist that study past and present climate
  11. 13. forms when cold air masses overtake a warm air mass
  12. 14. and form of water that falls to earths surface
  13. 15. when solid changes right into a gas
  14. 18. lowest layer of atmosphere
  15. 19. stands for radio detection
  16. 21. measures wind speed
  17. 22. thee transfer of heat energy as heat through a material
  18. 25. mixture of gasses sounding earth
  19. 26. the gaseous phase of water
  20. 30. how direction of the wind is determined